Explosive-engine.



H. G. H'.- MUSTAD. EXPLOSIVE ENGINE urmouuon FILED OUT. 20, 1909.

Patented Nov. 8, 19 10.

2 SHEETS-SHEET 1.

- Inventor Witnesses fi H. G; H. MUSTAD. EXPLOSIVE ENGINE; APPLICATION FILED our. 20, 1909.

Patented Nov. 8, 1910.

2 SHEETS-SHEET 2.

fllll/rl/ VII fllrlrl/I/l/ll/ll Witnesses. d i

Inventor.

- This secures a very clean explosion chama vertical section through an explosion en- .which also has other advantages of great imstead of the usual valves.

PATEN UFFIG =1 HANS CLARIN novnm MUSTAD, or ,DUCLAIB,

EXPLOSIVE-ENGINE.

To all whom it may concern:

Be it known that I, HANS CLARIN Hovmn MUs'rAn, a subject of the King of Norway, residing at Duclair, Seine-Infrieure, France, have invented certain new and useful Improvements in Explosive-Engines; and I.do hereby declare the following to bea full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying' drawings, and to letters or figures .of reference marked thereon, which form a part of this specification.

My invention relates to internal combustion engines.

The obIect of my invention is to provide an explosion engine of greater efiiciency than the types of engines hitherto known, and

portance.

The invention consists in providing slide valves of peculiar form and arrangement in- The slide valves in my engine are fitted between the piston and the casing forming the explosion chamher, so as to form together a cylinder, in which the piston works; each slide is preferably semicylindrical in cross section. The slides are moved by gearing inclosed in the crank chamber. All of the moving parts of the engine will in this manner be inclosed in the casing of the engine, and the'crank dipping into the oil on the bottom of the crank chamber will spread oil to all of the moving parts, the slides and piston inclusive.

Other advantages by the new engine are that I am able to provide very large inlet and outlet ports, whereby the gases arevery little obstructed when passing in and out.

her, there being no pockets or corners, and accordingly the explosion will reach the whole volume of gas very rapidly. The surface to be cooled is also greatly diminished, whereby a greater thermic efliciency is obtained.

The engine has a very simple construction, Which admits of easy dismounting, cleaning and repairing.

In the accompanying drawing. Figure 1 is gine arranged according to this invention. Figs. 2 to 5 are views illustrating details of Specification of Letters Patent. Application filed October 20,

the engine. Fig. is 'a vertical section Patented Nov. 8, 1910. 1909; Serial No. 523,629.

through a modified form of an explosion engine, arranged according to this invention.

The water jacketed cylinder or casing A which is mounted on the casing B, forming the crank chamber, has two long narrow ports or slits G and H, through the first of which the combustible gases are admitted into the explosion chamber F, while the other serves as an exhaust opening for the combustion products. The casing A has also two openings I and J, through which the semicylindricalslides M, N, the upper ends .8

of which serve to cover or uncover at'the right moments the above mentioned ports G and H, are arranged to move independently of each other axially in relation to the cylindrical casing A, and are also fitted accurately into this latter, so that they could be moved freely without causing any leakage to take place. For the same reason the longitudinal edges of the semicylindrical slides are also fitted tightly against each other. These slides are actuated by means of two cam mechanisms arranged symmetri cally one on each side of the crank shaft. As both these cam mechanisms are of the same construct-ion, it will be sufiicient to describe one of them for instance the left one, which actuates the admission slide. Figs. 2, 3 and 4 are respectively side View, front view and a plan view of this cam mechanism.

The cam shaft 0 is driven from the crank shaft D by a toothed gearing in such a manner as to make one revolution for each two revolutions of the crank shaft. On the cam shaft 0 are fixed three cams P, Q and Q} of which the first named is situated between the cams Q, and Q at a small distance from these latter. A crank lever R, S, T, which is pivoted at S, carries on the middle of its arm R, S a cam roller U, resting against two cam rollers V and V corresponding to the cams Q, and Q}, which latter are both of the same shape. The cam surfaces of the cam P and of the cams Q and Q are respectively given such profiles as to enable the cams of being always in contact withtheir respective cam rollers, whatever may be the position of the cam shaft 0, so that the slide controlled by the cam mechanism will always be given a firm and steady movement.

To the 'end R of the lever arm R, S are pivoted two links X, the other ends of which are pivotally connected to a lug on the lower end of the slide M. As above mentioned the cam mechanism operating the slide N is of exactly the same construction as that described. Of course the shape and movement of the cams could beeasily arranged so as to always effect the opening and closing of the inlet and exhaust ports at the right inoment. In all other respects not above mentioned this engine works or may work like internal combustion engines of the ordinary t pe.,-

The modification shown in Fig. 6 mainly differs from the engine just described in that the slides are provided with one or more ports corresponding with ports in the cylinder. 4

a is the cylinder, 6 the crank-housing, c the piston, d the crank and e the driving rod; f is the cylinder head and g and 12. are

ports, two on each side, for the inlet and outlet of gases. Corresponding to these ports thereare ports 70 and Z in the slides m and n.

These slides are by means of crank mechanism o, p, q and gear wheels 8, r, 7', i so moved, that the ports g, h are uncovered and covered once for each inward and once for each outward movement of the slides. From this reason the slides need only make one stroke by four. ofthe piston, whereby the working of-the engine will be very quiet and noiseless. When I have shown two ports on each side, this is for obtainin as quick as possible opening and closing 0 the ports.

Claims.

l. Anexplosion engine comprising a casing having an explosion chamber and inlet and outlet ports in the walls of the chamber, a' piston in the casing, a slide interposed directly between the piston and casing to control one of said ports, a second slide also .interposed directly between the piston and casing to control the other port, said second slide being 'angularly displaced with respect to the first slide, and means to' operate said slides to simultaneously close one port and open the other.

3. An explosion engine comprising a cas-'.

ing having an explosion chamber and inlet and outlet ports in the walls of the casing, a

piston in the casing, two oppositely positioned imperforate slides interposed directly between the piston and casing, a crank shaft connected with the piston, independent cranks connected with the slides, means to operate said cranks from the crank-shaft and a casing inclosing the cranks and crank shaft.

4. An explosion engine comprising a casing having an explosion chamber and inlet and outlet ports in the walls oif the casing, a piston in the casing,'two oppositely-positioned semi-cylindrical slides interposed directly between the piston and casing, a crank shaft connected with the piston, independent cranks connected with the slides, stub-shafts carrying said cranks and gearing clonpecting the crank shaft with said stubsia ts. a

5. An explosion engine comprising a cas-- cranks, a gear 011 each of said stub-shafts of larger diameter than the gear on the crankshaft, and a gear connecting the latter gear with the gears on the stub-shafts.

In testimony that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

HANS omen: HOVIND MUSTAD.

\Vitnesses: Y

. FIMBEL EMILE,

MAURICE DANJON. 

